class UpdateReleases < ActiveRecord::Migration
  def self.up
    change_table :releases do |t|
      t.string :release_type
      t.integer :day
      t.integer :month
      t.integer :year
    end
  end

  def self.down
    change_table :releases do |t|
      t.remove :release_type
      t.remove :day
      t.remove :month
      t.remove :year
    end
  end
end
